/*
 * BEEM is a videoconference application on the Android Platform.
 * Copyright (C) 2009 by Frederic-Charles Barthelery,
 * Jean-Manuel Da Silva,
 * Nikita Kozlov,
 * Philippe Lago,
 * Jean Baptiste Vergely,
 * Vincent Veronis.
 * This file is part of BEEM.
 * BEEM is free software: you can redistribute it and/or modify
 * it under the terms of the GNU General Public License as published by
 * the Free Software Foundation, either version 3 of the License, or
 * (at your option) any later version.
 * BEEM is distributed in the hope that it will be useful,
 * but WITHOUT ANY WARRANTY; without even the implied warranty of
 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
 * GNU General Public License for more details.
 * You should have received a copy of the GNU General Public License
 * along with BEEM. If not, see <http://www.gnu.org/licenses/>.
 * Please send bug reports with examples or suggestions to
 * contact@beem-project.com or http://dev.beem-project.com/
 * Epitech, hereby disclaims all copyright interest in the program "Beem"
 * written by Frederic-Charles Barthelery,
 * Jean-Manuel Da Silva,
 * Nikita Kozlov,
 * Philippe Lago,
 * Jean Baptiste Vergely,
 * Vincent Veronis.
 * Nicolas Sadirac, November 26, 2009
 * President of Epitech.
 * Flavien Astraud, November 26, 2009
 * Head of the EIP Laboratory.
 */
package com.beem.project.beem.smack.avatar;

import java.io.InputStream;
import java.io.ByteArrayOutputStream;
import java.io.IOException;
import java.net.URL;

/**
 * An AvatarRetriever which retrieve the avatar over HTTP.
 */
public class HttpAvatarRetriever implements AvatarRetriever {

	private URL mUrl;
	private String mUrlString;

	/**
	 * Create a HttpAvatarRetriever.
	 * 
	 * @param url
	 *            the url of the avatar to download.
	 */
	public HttpAvatarRetriever(final URL url) {
		mUrl = url;
	}

	/**
	 * Create a HttpAvatarRetriever.
	 * 
	 * @param url
	 *            the url of the avatar to download.
	 */
	public HttpAvatarRetriever(final String url) {
		mUrlString = url;
	}

	@Override
	public byte[] getAvatar() throws IOException {
		if (mUrl == null) mUrl = new URL(mUrlString);
		InputStream in = mUrl.openStream();
		ByteArrayOutputStream os = new ByteArrayOutputStream();
		try {
			byte[] data = new byte[1024];
			int nbread;
			while ((nbread = in.read(data)) != -1) {
				os.write(data, 0, nbread);
			}
		} finally {
			in.close();
			os.close();
		}
		return os.toByteArray();
	}

}
